Kuitwa kwe PCB ichakanganiswa nezvakawanda zvekunze kana zvakatipoteredza zvinhu, senge unyoro, tembiricha yakanyanyisa, munyu pfapfaidzo uye makemikari zvinhu. Iyo inodzivirira yekudzivirira ifirimu repolymer rakaputirwa pamusoro pePCB kuchengetedza PCB uye zvikamu zvayo kubva mukuora uye kusvibiswa kwezvakatipoteredza.

Nekudzivirira pesvedzero yezvinosvibisa uye zvakatipoteredza, iyo inodzivirira yekudzivirira inogona kudzivirira kukora kwevanotungamira, majoini ekutengesa uye mitsara. Mukuwedzera, inogonawo kuita basa mukudzivirira, nekudaro kuderedza kukanganiswa kwekupisa uye mechanical stress pane zvikamu.

Zvidziviriro zvekudzivirira chikamu chakakosha chemapuranga edunhu akadhindwa. Ukobvu kazhinji pakati 3-8 mils (0.075-0.2 mm). Inoshandiswa zvakanyanya mune aerospace, mota, mauto, marine, mwenje, vatengi zvemagetsi uye maindasitiri maindasitiri.

Mhando dzePCB inodzivirira coating

Zvinoenderana nemakemikari ekuumbwa, machira ekudzivirira anogona kukamurwa kuita marudzi mashanu, anoti acrylic, epoxy, polyurethane, silicone uye p-xylene. Sarudzo yejasi chaiyo yakavakirwa paPCB yekushandisa uye zvemagetsi zvinodiwa. Chete nekusarudza zvinhu zvakakodzera PCB inogona kuchengetedzwa zvinobudirira.

Acrylic protective coating:

Acrylic resin (AR) ndeye preformed acrylic polymer iyo yakanyungudutswa musolvent uye inoshandiswa kupfeka pamusoro pePCB. Acrylic inodzivirira yekudzivirira inogona kubhuroshwa neruoko, kupfapfaidzwa kana kunyikwa mu acrylic resin coatings. Iyi ndiyo inonyanya kushandiswa yekudzivirira yekudzivirira yePCBs.

Polyurethane inodzivirira coating:

Iyo polyurethane (UR) yekuputira ine yakanakisa dziviriro pamhedzisiro yemakemikari, mwando uye abrasion. Polyurethane (UR) machira ekudzivirira ari nyore kuisa asi anonetsa kubvisa. Hazvikurudzirwi kuigadzirisa zvakananga nekupisa kana simbi yekunyungudutsa, nekuti inoburitsa muchetura gasi isocyanate.

Epoxy resin (ER mhando):

Epoxy resin ine yakanakisa chimiro chekuchengetedza zvimiro munzvimbo dzakaoma. Zviri nyore kushandisa, asi zvinokuvadza dunhu kana raparadzaniswa. Epoxy resin inowanzova maviri-component thermosetting musanganiswa. Imwe-chikamu makomisheni anorapwa nekupisa kana ultraviolet mwaranzi.

Silicone (SR rudzi):

Silicone (SR rudzi) machira ekudzivirira anoshandiswa munzvimbo dzakanyanya kupisa. Rudzi urwu rwekupfekedza rwuri nyore kuisa uye rune huturu hushoma, uye hune anti-kupfeka uye hunyoro-hufakazi mhedzisiro. Silicone coatings chinhu chimwe-chikamu makomisheni.

Paraxylene:

Iyo paraxylene coating inoiswa kuPCB uchishandisa kemikari vapor deposition process. Paraxylene inova gasi kana yapiswa, uye mushure mekutonhodza, inoiswa mukamuri umo inopolima uye yova firimu rakatetepa. Iyo firimu inobva yaputirwa pamusoro pePCB.

PCB inodzivirira coating yekusarudza gwara

Rudzi rwekupfekedza runyoro rwunoenderana nehupamhi hwejasi rinodiwa, nzvimbo inofukidzwa, uye dhigirii rekunamatira kwekuputira kubhodhi uye zvikamu zvayo.

Nzira yekushandisa sei conformal coating kuPCB?

Kupenda nemaoko nebhurashi

Ruoko-pendi neaerosol

Shandisa pfuti yeatomizemu yekupfapfaidza nemanyorero

Automatic dip coating

Shandisa yakasarudzwa coater